{"instruction": "You are an expert in event argument extraction. Please extract event arguments and their roles from the input that conform to the schema definition, which already includes event trigger words. If an argument does not exist, return NAN or an empty dictionary. Please respond in the format of a JSON string.", "schema": [{"event_type": "potential therapeutic event", "arguments": ["Treatment.Dosage", "Treatment.Drug", "Subject.Age", "Treatment.Route", "Subject.Gender", "Subject.Disorder", "Treatment", "Effect", "Combination.Drug", "Subject.Population", "Treatment.Time_elapsed", "Subject.Race", "Subject", "Treatment.Freq", "Treatment.Duration"]}], "input": "RESULTS: Both cases presented here describe corneal ulcers that persisted and showed signs of worsening during weeks of frequent topical dosing with moxifloxacin."}
{"potential therapeutic event": []}